In September, your binoculars will reveal the rusty surface of Mars, iconic rings of Saturn, the waxing Moon—and the comet Giacobini-Zinner, which passes through the constellation of Auriga.

Find out more about what you can see from your backyard, front stoop, or local park by viewing this monthly program. “Tonight’s Sky” is produced by HubbleSite.org, online home of the Hubble Space Telescope.